Oops. Actually this issue is likely just lack of support for the GTX 1080 in the nouveau driver.
Can you please try enabling the Nvidia driver instead? It appears to be installed but not in use. ** Summary changed: - Stuttering when dragging windows around + [nouveau on GTX 1080] General Performance Is "slow" including stuttering when dragging windows around etc ** Changed in: gnome-shell (Ubuntu) Status: In Progress => Incomplete ** Package changed: gnome-shell (Ubuntu) => nvidia-graphics-drivers-390 (Ubuntu) ** Summary changed: - [nouveau on GTX 1080] General Performance Is "slow" including stuttering when dragging windows around etc + [nouveau on GTX 1080] General Performance Is "slow" including stuttering when dragging windows around etc (nvidia-390 is installed but modesetting in use) ** Summary changed: - [nouveau on GTX 1080] General Performance Is "slow" including stuttering when dragging windows around etc (nvidia-390 is installed but modesetting in use) + General Performance Is "slow" including stuttering when dragging windows around etc (nvidia-390 is installed but modesetting in use) ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Assignee: Daniel van Vugt (vanvugt) => (unassigned) ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1809423 Title: General Performance Is "slow" including stuttering when dragging windows around etc (nvidia-390 is installed but modesetting in use) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1809423/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs